编写猜单词
游戏 比如谜底（puzzle）是banana， 则给出画面（view） ^^^^^^ 每个^指代一个字母 如果玩家输入字母a， 因为banana第2 4 6位置为a， 则对应的view变成 ^a^a^a,
为什么按照下面给的程序 验证时出错 type error: 'int' object is not subscriptable 应该怎么改啊
HIDDEN = '^'
def update_view(puzzle, view, letter):
''' (str, str, str) -> str
Return the view of the puzzle with each occurrence of the letter in the puzzle revealed.
>>> update_view('banana', '^^^^^^', a)
>>> '^a^a^a'
'''
# function body
length = len(puzzle)
for index in range(length):
if length[index] == letter:
view[index] = letter
return view
将line11 改为if puzzle[index]==letter后还是不对
def update_view(puzzle, letter,ma='隐改^' ):
'''ma是掩码，指携仔单个字符^
'''
length = len(puzzle)
lst = []
for index in range(length):
唯汪 if puzzle[index] == letter:
lst[index] = letter
else:
lst[list]=ma
return ''.join(lst)
length = len(puzzle)
lst = [i for i in view]
for index in range(length):
if puzzle[index] == letter:
lst[index] = letter
view = ''.join(lst)
return view
string 的值无法修汪肆改激陵厅，明隐list 可以
if length[index] == letter
改为：茄念嫌
if puzzle[index] == letter
粗颤手心高槐了吧？